CN115032557A - State monitoring system for lithium battery pack of electric vehicle - Google Patents
State monitoring system for lithium battery pack of electric vehicle Download PDFInfo
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- CN115032557A CN115032557A CN202210427968.7A CN202210427968A CN115032557A CN 115032557 A CN115032557 A CN 115032557A CN 202210427968 A CN202210427968 A CN 202210427968A CN 115032557 A CN115032557 A CN 115032557A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/396—Acquisition or processing of data for testing or for monitoring individual cells or groups of cells within a battery
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L58/00—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles
- B60L58/10—Methods or circuit arrangements for monitoring or controlling batteries or fuel cells, specially adapted for electric vehicles for monitoring or controlling batteries
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D21/00—Measuring or testing not otherwise provided for
- G01D21/02—Measuring two or more variables by means not covered by a single other subclass
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
- G01R31/382—Arrangements for monitoring battery or accumulator variables, e.g. SoC
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0013—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries acting upon several batteries simultaneously or sequentially
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0029—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02J—CIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
- H02J7/00—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
- H02J7/0047—Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
- H02J7/005—Detection of state of health [SOH]
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02T—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO TRANSPORTATION
- Y02T90/00—Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02T90/10—Technologies relating to charging of electric vehicles
- Y02T90/16—Information or communication technologies improving the operation of electric vehicles
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- General Health & Medical Sciences (AREA)
- Medical Informatics (AREA)
- Life Sciences & Earth Sciences (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Transportation (AREA)
- Mechanical Engineering (AREA)
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
- Secondary Cells (AREA)
Abstract
The embodiment of the invention discloses a state monitoring system for a lithium battery pack of an electric vehicle, which comprises: the system comprises a battery state detection module, a sensor module, a microcontroller module, a server module and the like; analyzing the current state parameter data obtained by the battery state detection module and the vibration displacement state parameter data obtained by the sensor module by the microcontroller module, judging the current state information of the lithium battery pack, and triggering corresponding alarm indication information; and the server module further judges whether the current state of the lithium battery pack affects the service life of the lithium battery pack or not and generates early warning indication information. By adopting the state monitoring system for the lithium battery pack of the electric vehicle, disclosed by the invention, the real-time accurate monitoring of a plurality of lithium battery packs can be realized by utilizing the remote server to cooperate with the monitoring module and the microcontroller module arranged in the lithium battery pack based on the mobile Internet of things technology, the later maintenance and management cost is reduced, and the maintenance and management efficiency is greatly improved.
Description
Technical Field
The embodiment of the invention relates to the technical field of Internet of things, in particular to a state monitoring system for a lithium battery pack of an electric vehicle.
Background
With the development of the times, in order to solve the problem that people in cities are inconvenient to travel in short distance daily, the electric vehicle leasing industry realized based on the internet of things technology has come to the end, and more companies have introduced electric vehicle leasing business and are rapidly developed. The electric vehicle leasing business is a new leasing mode, is low-carbon and environment-friendly, is low in cost, improves the utilization efficiency, and greatly facilitates daily trips of people. However, in the existing electric vehicle leasing industry, the battery charging operation and maintenance cost is too high, the operation difficulty is also very high, and the large-scale popularization is difficult. At present, although companies try to solve the above problems in various ways, the effect is not ideal. A better battery monitoring management solution is urgently needed to be pushed out, the battery operation and maintenance cost of the rented electric vehicle is reduced, and the service life of the battery is prolonged through reasonable and effective monitoring and management.
At present, in the use, the user can't know the relevant information and the health status of battery, if the battery system breaks down after, produce the potential safety hazard easily. For a rental electric vehicle provider, relevant information of a battery running state cannot be effectively collected, and when a battery fails, a reason for the battery failure is difficult to find. Therefore, the lack of accurate monitoring and management for the electric vehicle battery cannot ensure the effectively guaranteed power performance, and meanwhile, the cycle service life of the battery system is low.
Disclosure of Invention
Therefore, the embodiment of the invention provides a state monitoring system for a lithium battery pack of an electric vehicle, which aims to solve the problem that the lithium battery pack providing lease service in the prior art cannot realize accurate monitoring and management, so that the cycle service life of the lithium battery pack is short.
In order to achieve the above object, the embodiments of the present invention provide the following technical solutions:
the embodiment of the invention provides a state monitoring system for a lithium battery pack of an electric vehicle, which comprises: the system comprises a battery state detection module, a sensor module, a microcontroller module, a network communication module, a server module and an alarm indication module;
the battery state detection module is used for detecting current state parameter data of a battery cell in the lithium battery pack during charging and discharging through a charging and discharging acquisition circuit arranged in the lithium battery pack and sending the current state parameter data to the microprocessor module;
the sensor module is used for detecting vibration displacement state parameter data of the lithium battery pack through a pressure sensor and a vibration sensor arranged in the lithium battery pack and sending the vibration displacement state parameter data to the microprocessor module;
the microcontroller module is used for receiving the state parameter data uploaded by the battery state detection module and the sensor module, comparing the state parameter data with a preset state parameter threshold value, judging the current state information of the lithium battery pack, and generating a corresponding control instruction according to the current state information to trigger the alarm indication module arranged in the lithium battery pack to send alarm indication information;
the server module is used for acquiring state parameter data in the battery state detection module and the sensor module and current state information in the microcontroller module through the network communication module, judging whether the current state of the lithium battery pack affects the service life of the lithium battery pack according to the state parameter data, the current state information, current state duration time information and preset influence factors of the service life of the lithium battery pack, if so, generating early warning indication information and sending the early warning indication information to a client; wherein the state parameter data comprises at least one of the current state parameter data and the vibration displacement state parameter data.
Further, the system also comprises a remote positioning module;
the remote positioning module is used for generating position data aiming at the lithium battery pack and sending the position data to the microcontroller module;
the microcontroller module is also used for uploading the position information to the server module through the network communication module, and receiving a control instruction sent by the server module to trigger the alarm indication module arranged in the lithium battery pack to send acousto-optic alarm information;
the server module is also used for sending the position information to a client through the network communication module, receiving searching instruction information sent by the client and generating the control instruction according to the searching instruction information.
Further, the battery state detection module includes: the battery temperature detection submodule comprises a battery voltage detection submodule, a battery temperature detection submodule and a battery current detection submodule;
the battery voltage detection submodule is used for detecting voltage parameter data of a battery cell in a lithium battery pack in a charging and discharging state through a battery cell voltage acquisition circuit arranged in the lithium battery pack and sending the voltage parameter data to the microprocessor module;
the battery temperature detection submodule is used for detecting temperature parameter data of the lithium battery pack in a charging and discharging state through a battery temperature detection circuit arranged in the lithium battery pack and sending the temperature parameter data to the microprocessor module;
the battery current detection submodule is used for detecting current parameter data when the lithium battery pack is in a discharge state through a discharge current detection circuit arranged in the lithium battery pack and sending the current parameter data to the microprocessor module.
Further, the server module is further configured to obtain target electric quantity data of the lithium battery pack according to the voltage parameter data, the current parameter data and the running time information of the lithium battery pack, compare the target electric quantity data with current actual electric quantity data, judge whether electric leakage exists in the lithium battery pack, generate early warning indication information if electric leakage exists in the lithium battery pack, and send the early warning indication information to a client.
Further, the server module further includes: a fault recording submodule;
the fault recording submodule is used for recording the fault type of the lithium battery pack and the state parameter data of the lithium battery pack corresponding to the fault type, constructing a mapping relation between the fault type and the state parameter data and storing the mapping relation to a storage module; the state parameter data comprises at least one of voltage parameter data, current parameter data, temperature parameter data and vibration displacement state parameter data when an electric core in the lithium battery pack is in a charging and discharging state.
Further, the server module further includes: a fault automatic diagnosis sub-module;
and the fault automatic diagnosis sub-module is used for judging the current fault type of the lithium battery pack according to the detected actual state parameter data and the mapping relation stored in the storage module.
Further, the current state parameter data includes at least one of voltage parameter data, temperature parameter data, and current parameter data of a battery cell in the lithium battery pack in a charge-discharge state.
Further, the alarm indication information includes at least one of an indicator light flashing alarm indication information and a whistling alarm indication information.
Further, the early warning indication information is used for displaying the fault type of the lithium battery pack and indicating the corresponding processing operation required to be performed by a user in time.
By adopting the state monitoring system for the lithium battery pack of the electric vehicle, disclosed by the invention, the real-time accurate monitoring of a plurality of lithium battery packs can be realized by utilizing the remote server to cooperate with the monitoring module and the microcontroller module arranged in the lithium battery pack based on the mobile Internet of things technology, the maintenance and management efficiency is greatly improved, the later maintenance and management cost is reduced, and the service life of the lithium battery pack is prolonged.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It should be apparent that the drawings in the following description are merely exemplary and that other implementation drawings may be derived from the provided drawings by those of ordinary skill in the art without inventive effort.
The structures, ratios, sizes, and the like shown in the present specification are only used for matching with the contents disclosed in the specification, so as to be understood and read by those skilled in the art, and are not used to limit the conditions that the present invention can be implemented, so that the present invention has no technical significance, and any structural modifications, changes in the ratio relationship, or adjustments of the sizes, without affecting the effects and the achievable by the present invention, should still fall within the range that the technical contents disclosed in the present invention can cover.
Fig. 1 is a schematic diagram of a state monitoring system for a lithium battery pack of an electric vehicle according to an embodiment of the present invention.
Detailed Description
The present invention is described in terms of particular embodiments, other advantages and features of the invention will become apparent to those skilled in the art from the following disclosure, and it is to be understood that the described embodiments are merely exemplary of the invention and that it is not intended to limit the invention to the particular embodiments disclosed. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The following describes an embodiment of a state monitoring system for a lithium battery pack of an electric vehicle in detail based on the present invention. As shown in fig. 1, a schematic diagram of a state monitoring system for a lithium battery pack of an electric vehicle according to an embodiment of the present invention is provided, and a specific implementation process includes the following steps: the system comprises a battery state detection module, a sensor module, a microcontroller module, a network communication module, a server module, an alarm indication module and the like.
The battery state detection module 101 is configured to detect current state parameter data of a battery cell in the lithium battery pack when the battery cell is charged and discharged through a charge and discharge acquisition circuit arranged in the lithium battery pack, and send the current state parameter data to the microprocessor module.
In an embodiment of the present invention, the battery state detection module includes: at least one state detection module of a battery voltage detection submodule, a battery temperature detection submodule and a battery current detection submodule.
The method is characterized in that a charge-discharge acquisition circuit arranged in the lithium battery pack detects current state parameter data of a battery cell in the lithium battery pack when the battery cell is charged and discharged, and the method specifically comprises the following several implementation modes:
the battery voltage detection submodule is used for detecting voltage parameter data when a battery cell in the lithium battery pack is in a charging and discharging state through a battery cell voltage acquisition circuit arranged in the lithium battery pack and sending the voltage parameter data to the microprocessor module.
The battery temperature detection submodule is used for detecting temperature parameter data of the lithium battery pack in a charging and discharging state through a battery temperature detection circuit arranged in the lithium battery pack and sending the temperature parameter data to the microprocessor module.
The battery current detection submodule is used for detecting current parameter data when the lithium battery pack is in a discharge state through a discharge current detection circuit arranged in the lithium battery pack and sending the current parameter data to the microprocessor module.
Correspondingly, the current state parameter data includes at least one of voltage parameter data, temperature parameter data and current parameter data when a battery cell in the lithium battery pack is in a charging and discharging state.
The sensor module 102 is configured to detect vibration displacement state parameter data of the lithium battery pack through a pressure sensor and a vibration sensor arranged in the lithium battery pack, and send the vibration displacement state parameter data to the microprocessor module.
In the battery state detection module 101, the current state parameter data of the battery cell in the lithium battery pack during charging and discharging is detected through a charging and discharging acquisition circuit arranged in the lithium battery pack. In the sensor module 102, the vibration displacement state parameter data of the lithium battery pack may be further detected by a pressure sensor and a vibration sensor disposed in the lithium battery pack.
In the specific application process, because the lithium battery pack in the rented electric vehicle has the risk of being damaged intentionally or unintentionally, whether the lithium battery pack is subjected to external impact can be detected in the modes of the pressure sensor and the vibration sensor, and the pressure generated by the detected external impact is converted into specific vibration displacement state parameter data to be uploaded. The vibration displacement state parameter data may refer to at least one of pressure value parameter data suffered by the outside of the lithium battery pack or generated vibration frequency value data. In addition, the pressure sensor and the vibration sensor can also detect the movement information of the lithium battery pack in the electric vehicle.
The microcontroller module 103 is configured to receive the state parameter data uploaded by the battery state detection module and the sensor module, compare the state parameter data with a preset state parameter threshold, determine current state information of the lithium battery pack, and generate a corresponding control instruction according to the current state information to trigger the alarm indication module set in the lithium battery pack to send alarm indication information.
After the battery state detection module 101 and the sensor module 102 respectively obtain the current state parameter data and the vibration displacement state parameter data, data preparation is performed for the microcontroller module 103. In the microcontroller module 103, the current state information of the lithium battery pack may be determined according to a comparison between the state parameter data and a preset state parameter threshold.
In the embodiment of the present invention, the Microcontroller module 103 may be a Micro Controller Unit (MCU), which is also called a Single Chip Microcomputer (Single Chip Microcomputer), or a Single Chip Microcomputer, and is a Chip-level computer formed by appropriately reducing the frequency and specification of a Central Processing Unit (CPU) and integrating peripheral interfaces such as a memory (memory) and a counter (Timer) on a Single Chip, and may be implemented to perform different combination control in different application occasions. The state parameter data may refer to at least one of voltage value data, current value data, temperature value data of an electric core in the lithium battery pack, and pressure value data and vibration frequency value data suffered by the outside of the lithium battery pack.
The current state information refers to that the battery cell of the lithium battery pack is in a voltage overhigh state, a current overhigh state, a temperature overhigh state or in a state damaged by external impact force at present. The alarm indication information comprises at least one of indication lamp flickering alarm indication information and whistling alarm indication information.
The server module 104 is configured to obtain, through the network communication module, state parameter data in the battery state detection module and the sensor module and current state information in the microcontroller module, determine whether the current state of the lithium battery pack affects the service life of the lithium battery pack according to the state parameter data, the current state information, time information of current state duration, and preset influence factors of the service life of the lithium battery pack, and if so, generate early warning indication information and send the early warning indication information to a client; wherein the state parameter data includes at least one of the current state parameter data and the shock displacement state parameter data.
The battery state detection module 101 and the sensor module 102 respectively obtain current state parameter data and vibration displacement state parameter data, and the microcontroller module 103 further performs data preparation for the server module 104 after determining the current state information of the lithium battery pack. In the server module 104, it may be determined whether the current state of the lithium battery pack affects the service life of the lithium battery pack according to the state parameter data, the current state information, the time information of the current state duration, and a preset influence factor of the service life of the lithium battery pack.
In the embodiment of the present invention, the network communication module may refer to a 4G network information transmission module and the like. The influence factors of the service life of the lithium battery pack comprise that when the duration of the lithium battery pack in a voltage overhigh state, a current overhigh state or a temperature overhigh state respectively reaches or exceeds a preset duration, the current state of the lithium battery pack can be judged to influence the service life of the lithium battery pack. Or when the voltage value, the current value or the temperature value respectively corresponding to the overhigh voltage state, the overhigh current state or the overhigh temperature state respectively reaches or exceeds the preset voltage threshold value, the current threshold value or the temperature threshold value respectively, it can be judged that the current state of the lithium battery pack has an influence on the service life of the lithium battery pack.
The early warning indication information can be sent to a client of a remote maintenance person or an electric vehicle user through the server module and is used for displaying the fault type of the lithium battery pack and indicating the corresponding processing operation which needs to be carried out in time by the remote maintenance person or the electric vehicle user, so that the cycle service life of the lithium battery pack is prolonged.
In an actual implementation process, the server module may be further configured to obtain target electric quantity data of the lithium battery pack according to the voltage parameter data, the current parameter data and the running time information of the lithium battery pack, compare the target electric quantity data with current actual electric quantity data, determine whether electric leakage exists in the lithium battery pack, generate early warning indication information if electric leakage exists in the lithium battery pack, and send the early warning indication information to the client.
Additionally, the system may further include a remote location module; the remote positioning module is used for generating position data aiming at the lithium battery pack and sending the position data to the microcontroller module. At this time, the microcontroller module may be configured to upload the location information to the server module through the network communication module, and receive a control instruction issued by the server module to trigger the alarm indication module set in the lithium battery pack to send acousto-optic alarm information. The server module may be configured to send the location information to a client through the network communication module, receive search instruction information sent by the client, and generate the control instruction according to the search instruction information.
Further, the server module may further include a fault logging sub-module. The fault recording sub-module can be used for recording a fault type of the lithium battery pack in a period of time before and state parameter data of the lithium battery pack corresponding to the fault type, constructing a mapping relation between the fault type and the state parameter data, and storing the mapping relation into a storage module; the state parameter data comprises at least one of voltage parameter data, current parameter data, temperature parameter data and vibration displacement state parameter data when an electric core in the lithium battery pack is in a charging and discharging state.
In order to help the operation and maintenance personnel to quickly send the lithium battery pack of the electric vehicle, in the embodiment of the invention, the server module may further comprise an automatic fault diagnosis sub-module. The fault automatic diagnosis sub-module can be used for judging the current fault type of the lithium battery pack according to the detected actual state parameter data and the mapping relation stored in the storage module.
By adopting the state monitoring system for the lithium battery pack of the electric vehicle, disclosed by the invention, the real-time accurate monitoring of a plurality of lithium battery packs can be realized by utilizing the remote server to cooperate with the monitoring module and the microcontroller module arranged in the lithium battery pack based on the mobile Internet of things technology, the maintenance and management efficiency is greatly improved, the later maintenance and management cost is reduced, and the service life of the lithium battery pack is prolonged.
Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements may be made based on the invention. Accordingly, such modifications and improvements are intended to be within the scope of the invention as claimed.
Claims (9)
1. A state monitoring system for a lithium battery pack of an electric vehicle is characterized by comprising: the system comprises a battery state detection module, a sensor module, a microcontroller module, a network communication module, a server module and an alarm indication module;
the battery state detection module is used for detecting current state parameter data of a battery cell in the lithium battery pack during charging and discharging through a charging and discharging acquisition circuit arranged in the lithium battery pack and sending the current state parameter data to the microcontroller module;
the sensor module is used for detecting vibration displacement state parameter data of the lithium battery pack through a pressure sensor and a vibration sensor arranged in the lithium battery pack and sending the vibration displacement state parameter data to the microcontroller module;
the microcontroller module is used for receiving the state parameter data uploaded by the battery state detection module and the sensor module, comparing the state parameter data with a preset state parameter threshold value, judging the current state information of the lithium battery pack, and generating a corresponding control instruction according to the current state information to trigger the alarm indication module arranged in the lithium battery pack to send alarm indication information;
the server module is used for acquiring state parameter data in the battery state detection module and the sensor module and current state information in the microcontroller module through the network communication module, judging whether the current state of the lithium battery pack affects the service life of the lithium battery pack according to the state parameter data, the current state information, current state duration time information and preset influence factors of the service life of the lithium battery pack, if so, generating early warning indication information and sending the early warning indication information to a client; wherein the state parameter data comprises at least one of the current state parameter data and the vibration displacement state parameter data.
2. The system for monitoring the state of a lithium battery pack of an electric vehicle according to claim 1, further comprising: a remote positioning module;
the remote positioning module is used for generating position data aiming at the lithium battery pack and sending the position data to the microcontroller module;
the microcontroller module is also used for uploading the position information to the server module through the network communication module, and receiving a control instruction sent by the server module to trigger the alarm indication module arranged in the lithium battery pack to send acousto-optic alarm information;
the server module is further used for sending the position information to a client through the network communication module, receiving searching instruction information sent by the client, and generating the control instruction according to the searching instruction information.
3. The system for monitoring the state of the lithium battery pack of the electric vehicle according to claim 1, wherein the battery state detection module comprises: the battery temperature detection submodule comprises a battery voltage detection submodule, a battery temperature detection submodule and a battery current detection submodule;
the battery voltage detection submodule is used for detecting voltage parameter data of a battery cell in a lithium battery pack in a charging and discharging state through a battery cell voltage acquisition circuit arranged in the lithium battery pack and sending the voltage parameter data to the microcontroller module;
the battery temperature detection submodule is used for detecting temperature parameter data of the lithium battery pack in a charging and discharging state through a battery temperature detection circuit arranged in the lithium battery pack and sending the temperature parameter data to the microcontroller module;
the battery current detection submodule is used for detecting current parameter data when the lithium battery pack is in a discharge state through a discharge current detection circuit arranged in the lithium battery pack and sending the current parameter data to the microcontroller module.
4. The system for monitoring the state of the lithium battery pack of the electric vehicle according to claim 3, wherein the server module is further configured to obtain target electric quantity data of the lithium battery pack according to the voltage parameter data, the current parameter data and the running time information of the lithium battery pack, compare the target electric quantity data with current actual electric quantity data, determine whether electric leakage exists in the lithium battery pack, generate early warning indication information if electric leakage exists in the lithium battery pack, and send the early warning indication information to a client.
5. The system for monitoring the state of a lithium battery pack of an electric vehicle according to claim 1, wherein the server module further comprises: a fault recording submodule;
the fault recording submodule is used for recording the fault type of the lithium battery pack and the state parameter data of the lithium battery pack corresponding to the fault type, constructing a mapping relation between the fault type and the state parameter data and storing the mapping relation to a storage module; the state parameter data comprises at least one of voltage parameter data, current parameter data, temperature parameter data and vibration displacement state parameter data when an electric core in the lithium battery pack is in a charging and discharging state.
6. The system for monitoring the state of a lithium battery pack of an electric vehicle according to claim 5, wherein the server module further comprises: a fault automatic diagnosis sub-module;
and the fault automatic diagnosis sub-module is used for judging the current fault type of the lithium battery pack according to the detected actual state parameter data and the mapping relation stored in the storage module.
7. The system of claim 1, wherein the current state parameter data comprises at least one of voltage parameter data, temperature parameter data, and current parameter data of cells in the lithium battery pack in a charging/discharging state.
8. The status monitoring system for a lithium battery pack of an electric vehicle according to claim 1, wherein the alarm indication information comprises at least one of an indicator light flashing alarm indication information and a whistling alarm indication information.
9. The system for monitoring the state of the lithium battery pack of the electric vehicle according to claim 1, wherein the early warning indication information is used for displaying the fault type of the lithium battery pack and indicating the corresponding processing operation required to be performed by a user in time.
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792629A (en) * | 2022-11-21 | 2023-03-14 | 惠州恒立能源科技有限公司 | Alarm monitoring system and method for lithium battery energy storage |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115792629A (en) * | 2022-11-21 | 2023-03-14 | 惠州恒立能源科技有限公司 | Alarm monitoring system and method for lithium battery energy storage |
| CN115792629B (en) * | 2022-11-21 | 2024-04-02 | 惠州因博利电子科技有限公司 | Alarm monitoring system and method for lithium battery energy storage |
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